21. We should pay attention to ________ is taught in the book after the class. A. howB. where C. when D. what
22. I can not but ________ the truth of her words, although it is hard to believe. A. to admit B. admittingC. admitD. have admitted
23. _______ she is in good health, she often helps others. A. Despite B. When C. If D. Although 来源：考试大 24. If she _________ yesterday, we would have told her everything. A. cameB. would comeC. had come D. could come
25. A person who likes to talk to _______ is not really maD. A. oneself B. themselvesC. yourself D. itself
26. I watch my teacher ______ the exercise first before I attempt it myself. A. do B. to do C. done D. having done
27. There were five rooms in the house, _______ serves as kitchen. A. one of themB. one of whichC. one of thoseD. one of whom
28. ________ she came and saw you, I knew she was angry with the joB. A. A moment B. The moment C. In the momentD. At that moment
29. He did not regret ________ what he thought was right. A. to have doneB. being done C. to do D. having done
30. She told us that this book would cost ______ that one she borrowed from her frienD. A. twice much thanB. twice as much as C. as much twice as D. as much as twice